Anyone else have this problem? I triple checked the album names, artists and even the genre for several albums for which the album art wouldn't download and it still won't. This includes the entire Led Zeppelin catalogue and the David Grisman albums, "The Pizza Tapes" and "Shady Grove," which all have album art in the iTunes store. The album art iTunes supplies is of high enough quality that I would like to use what they have instead of what I can find online on Amazon or wherever... any ideas?